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Ubuntu Options for Android devices
Options to Work on Hyperledger from an Android Phone
Option 1 - Use VNC client for Android and connect to an Ubuntu server
https://play.google.com/store/apps/details?id=com.realvnc.viewer.android&hl=en_US
or the free option
https://play.google.com/store/apps/details?id=android.androidVNC&hl=en
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Technorm notes to install Ubuntu server on Android phone
https://www.technorms.com/12451/install-ubuntu-on-android
or the free deployment tool option below
Maketecheasy article to install Ubuntu on Android with Linux Deploy
https://www.maketecheasier.com/install-ubuntu-on-android-linux-deploy/
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